antiarrythmic drug class Ιb produce its action through:
a- decrease rate of phase 0 depolarization
b- increase phase 3 repolarization
c- decrease phase 4 depolarization
d- adrenergic receptor blocking
e- shorten phase 3 repolarization
a- decrease rate of phase 0 depolarization
b- increase phase 3 repolarization
c- decrease phase 4 depolarization
d- adrenergic receptor blocking
e- shorten phase 3 repolarization